Suirodoku Daily Challenge #10

July 18, 2026 · one worldwide grid (UTC) · medium · digits × colors

9
3
2
8
2
7
1
9
6
4
7
9
8
2
2
8
1
7
6
3
9
6
8
9
2
7
9
8
5
8
2
4
7
9
4
8
2
1
1
5
4
8

Top 10 of the day

RankPlayerTimeErrors
#1waly7:341
#2Player13:360
Play today’s Daily Challenge →
← #9#11 →

Suirodoku is a free online color sudoku: every row, column and region holds the digits 1-9 AND all 9 colors, and each digit-color pair appears exactly once. The math behind it · Daily hub